202020322123201 has 4 divisors (see below), whose sum is σ = 202176081817732. Its totient is φ = 201864562428672.

The previous prime is 202020322123141. The next prime is 202020322123283. The reversal of 202020322123201 is 102321223020202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142798293630976 + 59222028492225 = 11949824^2 + 7695585^2 .

It is a cyclic number.

It is not a de Polignac number, because 202020322123201 - 2¹³ = 202020322115009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202020322423201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77879845320 + ... + 77879847913.

It is an arithmetic number, because the mean of its divisors is an integer number (50544020454433).

Almost surely, 2^{202020322123201} is an apocalyptic number.

It is an amenable number.

202020322123201 is a deficient number, since it is larger than the sum of its proper divisors (155759694531).

202020322123201 is a wasteful number, since it uses less digits than its factorization.

202020322123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155759694530.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 202020322123201 its reverse (102321223020202), we get a palindrome (304341545143403).

The spelling of 202020322123201 in words is "two hundred two trillion, twenty billion, three hundred twenty-two million, one hundred twenty-three thousand, two hundred one".